Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm

[pandora-kernel.git] / arch / avr32 / lib / findbit.S

diff --git a/arch/avr32/lib/findbit.S b/arch/avr32/lib/findbit.S
index c6b91de..b935864 100644 (file)
--- a/arch/avr32/lib/findbit.S
+++ b/arch/avr32/lib/findbit.S
@@ -123,7 +123,37 @@ ENTRY(find_next_bit)
        brgt    1b
        retal   r11
 
-ENTRY(generic_find_next_zero_le_bit)
+ENTRY(find_next_bit_le)
+       lsr     r8, r10, 5
+       sub     r9, r11, r10
+       retle   r11
+
+       lsl     r8, 2
+       add     r12, r8
+       andl    r10, 31, COH
+       breq    1f
+
+       /* offset is not word-aligned. Handle the first (32 - r10) bits */
+       ldswp.w r8, r12[0]
+       sub     r12, -4
+       lsr     r8, r8, r10
+       brne    .L_found
+
+       /* r9 = r9 - (32 - r10) = r9 + r10 - 32 */
+       add     r9, r10
+       sub     r9, 32
+       retle   r11
+
+       /* Main loop. offset must be word-aligned */
+1:     ldswp.w r8, r12[0]
+       cp.w    r8, 0
+       brne    .L_found
+       sub     r12, -4
+       sub     r9, 32
+       brgt    1b
+       retal   r11
+
+ENTRY(find_next_zero_bit_le)
        lsr     r8, r10, 5
        sub     r9, r11, r10
        retle   r11